Rudolph hoffman



FILED MAR. 23, 1916.

Patented Aug. 1, 1916.

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man arianne navrant otmr -Ilflll'DOLIII HOFFMAN, OlE KANKAKEE, ILLINOIS,ASSIGNOR T0 SEARS, ROEBUCK .AND

COMPANY, F CHICAGO, ILLINOIS, A CORPORATION OF NEW YORK.

LIGHTING-RING.

T 0 all whom t may concern y Be it known that I, RUDOLPH HOFFMAN, acitizen of the United States, residing at Kankakee, in the county ofKankakee and State of Illinois, have invented certain new and usefulImprovements in Lighting-Rings, of which the following is aspecification.

This invention relates to the lighting rings used in wickless oilburners, as, for example, burners of the type shown in Patent No.1,154,637, dated September 28, 1915.

As heretofore constructed, difficulty has been experienced with lightingrings on account of the fact that the upper edge of the ring has beenuneven, thereby causing the flame to burn unevenly. Moreover, in thecase of aqring constructed of a plurality of thicknesses of sheetmaterial, an excessive amount of vapor has passedupwardly between thelayers, thereby imparting undesrablequalities to the flame.

rIhe object of this invention is to produce a lighting ring having asmooth upper edge of uniform height, and vso constructed as to preventan excessive amount of vapor from passing upwardly between the layers ofwhich the ring is composed.

In the accompanying drawings, Figure 1 is a perspective View of alighting ring embodying the features of my invention. Fig. 2 is asection on line 2-2 of Fig. 1.

While the body 1 of the ring may be composed of any suitable material,it is herein shown as formed of concentric layers 2 of asbestos paper,the layers being held together in the form of a ring in any suitablemanner, as by means of wire staples 3. rIhe upper edge of the body 1' iscovered with suitable material, as, for example', a strip 4 of asbestospaper folded along its longitudinal Patented Aug'. I, 1916.

Application led March 23, 1916. Serial No. 86,086.

center to span the upper edges of the layers 2 and lie at opposite sidesof said layers, as shown in the drawings. 'Ihe folded strip 4 is held inplace by suitable means, as, for example, wire staples 5.

In order to make the Vupper edge of the lighting ring smooth and'even,the upper edge portion of the ring may be moistened with a suitableliquid,.as water, vand the ring inverted into a suitable mold or form,whereby the loose iibers are flattened down and the edge of the ringmade smooth, round and of uniform height. After the water has evaporatedthe ring is ready for use.

It will be seen that the folded strip 4 prevents the passage of anexcessive amount of vapor upwardly between the layers 2.

I claim as my invention:

1. A lighting ring for wickless oil burners comprising a body in ringform consisting of a plurality of concentric layers of sheet material,and a strip of asbestos in sheet form folded over the upper edge of saidlayers and secured to the body and covering the upper edge and the upperportion of the inner and outer sides of the body.

2. A lighting ring for wickless oil burners comprising a body in ringform consisting of a plurality of concentric layers of asbes- -tos insheet form, a strip of asbestos in sheet form folded over the upper edgeof the body and covering the upper edge and the upper f portion of theinner and outer sides of the body, and devices for securing said stripto the body, said devices being located wholly below the upper edge ofthe body.

In testimony whereof, I have hereunto set my hand.

RUDOLPH HOFFMAN.

